class_docstr: Represents data from pandas DataFrame
class_docstr_tok: ["Represents","data","from","pandas","DataFrame"]
code: def execute(cls, ctx, op):
      ctx[op.outputs[0].key] = op.data
  
file_path: mars/mars/dataframe/datasource/dataframe.py
imports: import itertools
  import pandas
  from ...None import opcodes
  from ...config import options
  from ...core import OutputType
  from ...serialization.serializables import DataFrameField, SeriesField
  from ...tensor.utils import get_chunk_slices
  from ...utils import estimate_pandas_size
  from ..utils import decide_dataframe_chunk_sizes, parse_index, is_cudf
  from ..operands import DataFrameOperand, DataFrameOperandMixin
label_desc: Use image node_id 4 for calling the DataFrameDataSource obj's underlying member method code with example usage: obj.execute(cls, ctx, op) without return types